PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
OV1EN:
The OV1EN bit controls the identification of the third byte after J1 in the V1
frame. When OV1EN is set low, the corresponding OC1J1V1 output only
indicates the C1 and J1 bytes. The third byte after J1 is not indicated. When
OV1EN is set high, the corresponding OC1J1V1 output indicates the C1, J1
and the third byte after J1.
POHPT:
The POHPT bit controls the data of the path overhead column on the
corresponding outgoing STS-1 (AU3, AU4) streams. When POHPT is set low,
the outgoing POH columns (except the H4 byte) are set to all-zeros. When
POHPT is set high, the POH column (except the H4 byte) of the
corresponding incoming stream is transferred to the outgoing stream. A two
frame elastic store buffer is provided to absorb phase variations between the
incoming and outgoing frames.
INCOC1J1:
The INCOC1J1 bit controls whether the corresponding OC1J1V1 output
signal participates in the outgoing parity calculations. When INCOC1J1 is set
high, the parity signal set includes the OC1J1V1 output. When INCOC1J1 is
set low, parity is calculated without regard to the state of OC1J1V1. Selection
of odd or even parity is controlled by the OOP bit.
INCOPL:
The INCOPL bit controls whether the corresponding OPL output signal
participates in the outgoing parity calculations. When INCOPL is set high, the
parity signal set includes the OPL output. When INCOPL is set low, parity is
calculated without regard to the state of OPL. Selection of odd or even parity
is controlled by the OOP bit.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
121
PMC [ PMC-SIERRA, INC ]
